The Mercedes-Benz C300 is so impressive that it scores near the top of the sports sedan segment. It has a beautiful interior and delivers a driving experience that is close to ideal when it comes to balancing performance and comfort. Simply put: The C300 delivers the driving pleasure people expect from the brand. For those new to the brand, we think you'll find the C300 comfortable, quiet, agile, and altogether well done.
Alerts
There are 4 recalls on this vehicle. Learn More.

Reliability

Our extensive survey data, combined with our technical knowledge, allows us to expertly predict the reliability of new and redesigned models.

Predicted Reliability
The 2021 Mercedes-Benz C-Class has been recalled 4 times by NHTSA. View Recalls
Research Years * Redesign year
Worse Better
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Overall Reliability Verdict
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POTENTIAL TROUBLE SPOTS
Engine Major
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Engine Minor
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Engine Cooling
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Transmission Major
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Transmission Minor
NA
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Drive System
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Fuel System
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Electric System
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Climate System
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Suspension
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Brakes
NA
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Exhaust
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Paint/Trim
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Body Integrity
NA
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Body Hardware
NA
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Power Equipment
NA
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NA
NA
NA
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NA
NA
NA
In-car Electronics
NA
NA
NA
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NA
NA
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NA
Reliability indicates how models have performed in the past, providing the basis for predicting how the vehicles will hold up in the year ahead. These charts provide the most comprehensive reliability information available to consumers. Based on information received from our latest subscriber survey for about 329,000 vehicles, our reliability history charts give you a rundown on how 2000 through 2020 vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. NA indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.

Learn more about car Reliability.

Owner Reported Trouble Spots

No Data Available

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For this Rating, we averaged a model’s Overall Reliability for the newest three years, provided the vehicle did not change significantly in that time and hasn’t been redesigned for 2020. We include a prediction for a model that is new or has been redesigned, based on its reliability history or the manufacturer’s track record.
Recalls
PROVIDED BY
SEATS
May 28, 2021
Incorrectly mounted headrests could move or detach from the seat during a crash, increasing the risk of injury.
Summary:
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C300 Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63 AMG S Cabriolet, E450 Cabriolet, and E53 AMG Cabriolet vehicles. The rear headrests may be incorrectly mounted to the seatbacks.
What should you do:
Dealers will inspect the rear seatback guide bushings and replace them if necessary, free of charge. Owner notification letters are expected to be mailed July 27, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
NHTSA CAMPAIGN ID Number: 21V406000
Potential Number of Units Affected: 218
AIR BAGS, SEAT BELTS, SEATS
Apr 01, 2021
Air bags and seat belts that do not perform properly in a crash can increase the risk of injury.
Summary:
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C-Class, E-Class, E-Class Coupe and Convertible, GLC, CLS, AMG GT 4-door Coupe and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. A faulty electrical contact within the seat position switch may prevent the driver and passenger air bags and seat belt force limiters from properly activating during a crash.
What should you do:
MBUSA will notify owners, and dealers will replace the seat position switches, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021040016.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 21V230000
Potential Number of Units Affected: 8634
COMMUNICATION, ELECTRICAL SYSTEM
Feb 05, 2021
Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Summary:
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
What should you do:
MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 21V058000
Potential Number of Units Affected: 1292258
SEAT BELTS
Jan 29, 2021
If the seat belt does not fully retract, the occupant may find the operation of the seat belt inconvenient and not wear it, increasing the risk of injury in the event of a crash.
Summary:
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2021 C300, 2017-2020 AMG C43, and AMG C63 vehicles. The front seat belts might not fully retract to their stowed position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
What should you do:
MBUSA will notify owners, and dealers will check the retraction function of the front seat belts and adjust the damping foam within the B-pillars, as necessary, free of charge. The recall began February 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021020010.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 21V032000
Potential Number of Units Affected: 24550
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